X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=TelePyro%2Findex.mdwn;h=df10d0a16ef2614ba543892fc6fa5eaf57e456ca;hb=9c5dfd3c5e1edf40f4d58b23d5803ac81f7065d1;hp=8ff50012ff08f6fb077e591ac39042ed9ef729e9;hpb=6e82f0a392e09ec24dc2b5a278f9c737d673ee9f;p=web%2Faltusmetrum
diff --git a/TelePyro/index.mdwn b/TelePyro/index.mdwn
index 8ff5001..df10d0a 100644
--- a/TelePyro/index.mdwn
+++ b/TelePyro/index.mdwn
@@ -1,7 +1,11 @@
+[[!meta title="TelePyro"]]
# TelePyro
This is an 8-channel pyro expansion board for [TeleMetrum](../TeleMetrum/).
+ 
+ 
+
## Motivation ##
It would be nice to support more than the 2 channels of igniter control
@@ -14,21 +18,25 @@ charges.
### User View ###
* Small circuit board mounted near [TeleMetrum](../TeleMetrum/)
-* Requires rework of [TeleMetrum](../TeleMetrum/) to replace onboard igniter
-channels with cable providing access to LiPo power and implementing
-I2C protocol.
+* Requires [TeleMetrum](../TeleMetrum/) v0.2 or later, as v0.1 does not
+ have the required companion board interface
* Connections for 8 distinct igniter firing channels provided
* Supports use of separate battery for ejection charges
### Developer View ###
-* [Microchip 16F882](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en530146) Microcontroller
- * 3.5k Flash
- * 128 bytes RAM
- * I2C target interface
- * In-circuit programming interface
+* Hardware Features
+ * [Atmel ATmega32U4](http://www.atmel.com/dyn/products/product_card.asp?category_id=163&family_id=607&subfamily_id=760&part_id=4317) Microcontroller
+ * 32k Flash
+ * 2.5k + 832 bytes SRAM
+ * 1k EEPROM
+ * 12-channel 10-bit ADC
+ * SPI target interface
+ * USB interface which can be used for programming
+ * In-system programming interface
+ * Honeywell HMC5843 3-axis magnetic flux sensor
* Software Features (planned)
- * Written in PIC assembler
+ * programmed in C using gcc-avr
* Runs from on-chip flash, uses on-chip RAM
* Tools Used
* [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
@@ -36,12 +44,19 @@ I2C protocol.
* The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
* The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
-## Problems ##
+## Artifacts ##
+
+A schematic and PC board design exist on [git.gag.com](http://git.gag.com)
+in the project [hw/telepyro](http://git.gag.com/?p=hw/telepyro;a=summary),
+but no prototypes have been built yet.
-* Since we didn't anticipate this design, [TeleMetrum](../TeleMetrum/) needs
-minor rework to interface with this board.
+## Future Plans ##
-## Artifacts ##
+In late September 2011, v0.1 prototype boards were loaded and lightly
+tested. They were never flown. The prototypes of TelePyro were lost in the
+[Black Forest Fire](http://www.gag.com/blackforestfire.html), and have not
+been replaced.
-As of 11 April 2009, an incomplete schematic exists, but nothing is
-published yet.
+If we ever get back to this project, the first thing we'll want to do is toss
+out the current design and start over, using an ARM Cortex SOC and our "new
+pyro circuit" that completely prevents processor brown-out.
+
## Motivation ##
It would be nice to support more than the 2 channels of igniter control
@@ -14,21 +18,25 @@ charges.
### User View ###
* Small circuit board mounted near [TeleMetrum](../TeleMetrum/)
-* Requires rework of [TeleMetrum](../TeleMetrum/) to replace onboard igniter
-channels with cable providing access to LiPo power and implementing
-I2C protocol.
+* Requires [TeleMetrum](../TeleMetrum/) v0.2 or later, as v0.1 does not
+ have the required companion board interface
* Connections for 8 distinct igniter firing channels provided
* Supports use of separate battery for ejection charges
### Developer View ###
-* [Microchip 16F882](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en530146) Microcontroller
- * 3.5k Flash
- * 128 bytes RAM
- * I2C target interface
- * In-circuit programming interface
+* Hardware Features
+ * [Atmel ATmega32U4](http://www.atmel.com/dyn/products/product_card.asp?category_id=163&family_id=607&subfamily_id=760&part_id=4317) Microcontroller
+ * 32k Flash
+ * 2.5k + 832 bytes SRAM
+ * 1k EEPROM
+ * 12-channel 10-bit ADC
+ * SPI target interface
+ * USB interface which can be used for programming
+ * In-system programming interface
+ * Honeywell HMC5843 3-axis magnetic flux sensor
* Software Features (planned)
- * Written in PIC assembler
+ * programmed in C using gcc-avr
* Runs from on-chip flash, uses on-chip RAM
* Tools Used
* [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
@@ -36,12 +44,19 @@ I2C protocol.
* The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
* The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
-## Problems ##
+## Artifacts ##
+
+A schematic and PC board design exist on [git.gag.com](http://git.gag.com)
+in the project [hw/telepyro](http://git.gag.com/?p=hw/telepyro;a=summary),
+but no prototypes have been built yet.
-* Since we didn't anticipate this design, [TeleMetrum](../TeleMetrum/) needs
-minor rework to interface with this board.
+## Future Plans ##
-## Artifacts ##
+In late September 2011, v0.1 prototype boards were loaded and lightly
+tested. They were never flown. The prototypes of TelePyro were lost in the
+[Black Forest Fire](http://www.gag.com/blackforestfire.html), and have not
+been replaced.
-As of 11 April 2009, an incomplete schematic exists, but nothing is
-published yet.
+If we ever get back to this project, the first thing we'll want to do is toss
+out the current design and start over, using an ARM Cortex SOC and our "new
+pyro circuit" that completely prevents processor brown-out.